The Ultimate Standard Valve Location Racing Head! - Information below is referring to fully assembled heads.
AFR is reviving its popular 220cc version due to overwhelming requests from customers for a larger bolt on standard valve location head. Unlike the previous 220 cc, the new Eliminator version requires no special parts. Valves and studs are in stock GM L98 locations just like the very popular, 180, 195, and 210 series heads. They do not require offset rockers of any kind yet are still able to muster flow numbers that are in raised runner head territory. A 329 CFM head that is perfect for someone wanting to retain all their standard components while still having the airflow to reach that elusive 700 HP mark in aggressive drag race trim. Displacement ranging from a high RPM 350 to a 427 CID with natural applications in the various sportsman classes, bracket/drag cars, oval track, and larger displacement street machines with typical operating ranges between 4000 to 8000 RPM depending on application. As always they come with AFR's trademark 3/4" thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm 2.100 intake and 1.600 exhaust with AFR's hardened ductile iron interlocking seats. Drilling for centerbolt valve covers available as an option. This head is not for every large displacement combination so if you are unsure whether this is the right AFR head for you, we always encourage you to contact us directly before purchasing.
The exhaust ports are raised .250" over a standard GM L-98 cylinder head.
Note:
2.100 valves will require aftermarket pistons notched for valve clearance.
| Basic Package Components | Part # |
| 100% CNC Ported Combustion Chambers 100% CNC Ported Exhaust Ports 100% CNC Ported Intake Ports Competition 5-angle Valve Job |
| Specifications, Features, and Optional Supporting Components |
| Head Material |
A356 Aluminum |
| Intake Port Volume | 220cc |
| Intake Port Dimension | 2.240" H x 1.310" W 3/8 Radius |
|
Intake Port Location
|
Stock |
| Exhaust Port Volume | 80cc |
| Exhaust Port Dimension | 1.420" H x 1.545" W |
| Exhaust Port Location | .250" Raised |
| Combustion Chamber Size | 65cc or 75cc |
|
Valve Cover Bolt Pattern
|
Perimeter Bolt |
| Valve Angle | 23? |
| Valve Spring Pocket Diameter | 1.580" O.D |
| Max Valve Spring Pocket Machining |
1.750" O.D |
|
Deck Thickness
|
.750" |
| Minimum Bore Diameter | 4.000" |
| Flat Mill | .006" per cc 60cc Maximum |
| Angle Mill | .009" per cc 55cc Maximum |
|
Minimum Cross Sectional Area
|
2.180 sq. in. |
| Note:Angle mills might require a .120" Thick intake gasket. | |
| Spark Plug Dimensions | 14mm x .750" w/Gasket Seat |
|
Intake Gasket, Fel-Pro #1206
|
AFR #6820 |
| Exhaust Port Gasket, Fel-Pro #1405 | AFR #6835 |
| Head Gasket, 350cid Fel-Pro #1003 | Street Pkg #6800 |
|
Head Gasket, 400cid Fel-Pro #1014
|
AFR #6802 |
| SB Chevy Head Bolt Kit, ARP #134-3701 | AFR #6310 |
| SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 | AFR #6305 |
| Head Bolt Washers, Manley | AFR #6320 |
| Stud Girdle GM L98 | AFR #6200 |
| Suggested Manifold | AFR Titan TXR #4801 |
| Suggested Manifold | AFR Titan TXS #4802 |
| Spark Plug Starting Range | Autolite 3922 |
|
Carb EO#
|
Not Emissions Complient |
